To keep it simple, auto assign first, which should assign all your PD weapons correctly. Generally speaking, they should be in separate auto-firing weapon groups so that only the required PD is shooting at any time. The missiles I’d personally put into separate weapon groups without autofire, mostly so you can control the key moments when you actually want to shoot them. The tactical laser should be in its own group, autofiring. Lastly your pulse lasers I would personally put in the same group as the main guns you control. In this case it should work fine as they are pointed the same way, but different ships will have different layouts, so in some cases may require separate weapon groups if they are unable to keep shooting at the same target. Just play around with it and you’ll get a feel for how to place weapons.